To evaluate aqueous cleaners for potential replacement of contact cleaner.
Date Run:
11/08/2004
Experiment Procedure:
Five products were selected from the lab's database of test results based on the products' past success in removing similar lubricants. Four of the products were diluted to 2% along with the client's current product using DI water in 600 ml beakers. A sixth product was used at full strength as recommended by the manufacturer. All six products were heated to 115 on a hot plate.
Eighteen preweighed 6061 aluminum coupons were coated with Fuch's Lubricants Renocut 6515 NC (mineral oil, vegetable oil) using a hand held swab. Coupons were allowed to sit for over an hour. A second set of weights were recorded to determine the amount of soil added. Three coupons were immersed into each cleaning product and cleaned using minimal agitation provided by a stir bar. Coupons were cleaned for 5 minutes, followed by a 15 second water rinse at 120 F and airblow off for 30 seconds at room temperature. Once dry, final weights were recorded and efficiencies were calculated for each product.
Trial Results:
All of the products out performed one of the client's current aqueous cleaners. Three of the products removed over 87% of the lubricant. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
Amberclean Q3
0.0918
0.0481
47.60
0.1934
0.0638
67.01
0.1074
0.0203
81.10
Formula 815 GD
0.2651
0.0983
62.92
0.1748
0.0528
69.79
0.2564
0.0552
78.47
Inproclean 3800
0.1845
0.0421
77.18
0.2610
0.0275
89.46
0.2194
0.0459
79.08
Surface Cleanse 930
0.2272
0.0076
96.65
0.2441
0.0255
89.55
0.2865
0.0085
97.03
Valtron SP 2275
0.2827
0.0518
81.68
0.2171
0.0205
90.56
0.5620
0.0471
91.62
Ionox HC2
0.3371
0.0702
79.18
0.3519
0.0108
96.93
0.3171
0.0095
97.00
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
The same six products will be retested under similar conditions. Ultrasonic energy will be added to improve efficiency.
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